Stefano Costa

Quantum GIS (QGIS) is a Geographic Information System (GIS) built for Linux/Unix, that works also on Windows and MacOS X. QGIS supports vector, raster, and database formats. QGIS is licensed under the GNU Public License.

Some of the major features include:

Support for spatially enabled PostGIS tables

Support for shapefiles, ArcInfo coverages, Mapinfo, and other formats supported by OGR